Syntheses of new chiral ferrocenylamine sulfide and selenide complexes of group X metals and their application to enantioselective cross-coupling reactions and selective hydrogenation
Ali, Hussein; Brubaker, Carl H.;
Abstract
A series of chiral ferrocenylamine sulfides and selenides and their complexes of Group X metals of type (S, R)-(η5-C5H3-1-CHMeNMe2-2-ER)Fe(η5-C5H5)MCl2 and (S, R)-(η5-C5H3-1-CHMeNMe2-2-ER)Fe(η5-C5H4ER)MCl2, (E = S, Se; M = Ni, Pd and Pt; R = Me, Et, n-Pr, i-Pr, n-Bu, t-Bu, i-Pent, Bz, Ph, 4-Cl-Ph and 4-tolyl have been prepared. Their application as homogeneous catalysts in Grignard cross-coupling reactions of 1-chloro-1-phenylethane with allylmagnesium chloride has been examined. This paper presents the first use of Ni and Pt thioether and selenoether complexes as catalysts for cross-coupling reactions that give high chemical yields (92-97%) and enantiomeric excesses up to 45%. However, Pd complexes showed their superiority for selective hydrogenation, giving up to quantitative conversion and 100% selective hydrogenation of cyclooctadiene and cyclohexadiene to cyclooctene and cyclohexene respectively. © 1990.
Other data
| Title | Syntheses of new chiral ferrocenylamine sulfide and selenide complexes of group X metals and their application to enantioselective cross-coupling reactions and selective hydrogenation | Authors | Ali, Hussein ; Brubaker, Carl H. | Issue Date | 1-Jul-1990 | Journal | Journal of Molecular Catalysis | Volume | 60 | Start page | 331 | End page | 342 | ISSN | 03045102 | DOI | 10.1016/0304-5102(90)85256-H | Scopus ID | 2-s2.0-0025454694 |
Attached Files
| File | Description | Size | Format | Existing users please Login |
|---|---|---|---|---|
| 1 SYNTHESES OF NEW CHIRAL FERROCENYLAMINE JMC2.pdf | 693.94 kB | Adobe PDF | Request a copy |
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